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-rw-r--r--extensions/libxt_physdev.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/extensions/libxt_physdev.c b/extensions/libxt_physdev.c
index 0f862c0c..55174724 100644
--- a/extensions/libxt_physdev.c
+++ b/extensions/libxt_physdev.c
@@ -25,7 +25,7 @@ help(void)
"\n", IPTABLES_VERSION);
}
-static struct option opts[] = {
+static const struct option opts[] = {
{ "physdev-in", 1, 0, '1' },
{ "physdev-out", 1, 0, '2' },
{ "physdev-is-in", 0, 0, '3' },